A pair of nylon safety straps for power racks with 3x3 uprights, used as a catch system for barbell lifts such as squats, bench press and rack pulls. They are meant for racks whose inside depth, measured between the front and back uprights, is 23 inches or less. Measure that inside distance before buying, since outside depth will not tell you whether these will fit.
The straps are rated to 750 lb and are made from reinforced nylon, which gives a softer catch than metal safety arms. The bar rests on the straps rather than striking metal, which helps protect knurling and cuts down on clanging. Quick-mount brackets install without tools, and converters are included for racks with 5/8 inch or 1 inch holes.